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best way to seal oil pan?

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coupe_nasty

10+ Year Contributor
266
16
Oct 15, 2011
Easton, Maryland
So ive heard mixed opinions on this and was wondering if its better to use a felpro gasket? Or permatex ultra grey?

My pan has a leak in it, so i was going to remove it and was wondering which i should use to re-seal it?
 
Sometimes gaskets won't work. I have always and will always use grey rtv. It is a b!tch to get off when pulling the pan, but mine has not leaked, ever. . .
 
Gobbing on tons of permatex finally fixed my turbo oil return line, so it gets a recommendation for this application as well. :p
 
A very wise mechanic once told me. Use rtv or a gasket but don't use both. He uses Mopar gray RTV. Apparently its the bees knees. I normally use black rtv without issues.
 
I'm going to be using grey permatex myself since that is what most people on this thread said. This thread really helped me out. Thanks
 
use a 1/8 - 1/4 inch continuous bead and let the bolts squish it. dont spread it out as you can end up with thin spots
 
THE RIGHT STUFF all the way!!! I've always got a leaking oil pan until I sealed it with "the Right Stuff" it's very sticky and seal very well. You put the right stuff on oil pan, you mount it in place and you torque all the bolt immediately to spec and you're done. It could be running 1 minutes after the installation.
 
What I did with mine was to use large washers under the screws to help spread the weight around and prevent warping. Just my 2 cents.

Edit: I use Permatex Black - more oil and heat resistant. Complete PITA to remove though. Believe me I know, done it 5 times already.
 
we have enough bolts in the oil pan that the load is evenly distributed for sealing.

one very important thing to remember is there is one short screw that goes directly under the timing belt. if you mix that up it will score the t belt and might cause a tbelt failure
 
What I did with mine was to use large washers under the screws to help spread the weight around and prevent warping. Just my 2 cents.

Edit: I use Permatex Black - more oil and heat resistant. Complete PITA to remove though. Believe me I know, done it 5 times already.

Yeah black is fine as well. Only reason I use grey is because that's all we used on everything at the ford dealership I worked at. Differentials, oil pans, valve covers, intake manifolds, etc. basically everything except head gaskets. Never an issue.
 
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